.banxin{
    width: 980px;
    font-size: 12px;
    margin: 0 auto;
    
}
body{
    font-family: Arial, Helvetica, sans-serif;
        -webkit-text-size-adjust: none;
        width: 100%;
}
.tanxing{
    display: flex;
    justify-content: space-between;
}

.icon {
    width: 1em;
    height: 1em;
    vertical-align: -0.15em;
    fill: currentColor;
    overflow: hidden;
  }
  *{
      padding: 0;
      margin: 0;
      list-style: none;
  }